2-(4-Chlorophenyl)-2-oxoethyl 2-methoxybenzoate

In the title compound, C16H13ClO4, the two benzene rings make a dihedral angle of 86.38 (8)°. In the crystal, intermolecular C—H⋯O hydrogen bonds link the molecules to form columns along the a axis. The molecules are also stabilized by a π–π stacking interaction, with a centroid–centroid distance of 3.7793 (10) Å between the inversion-related benzene rings.

In the title compound, C 16 H 13 ClO 4 , the two benzene rings make a dihedral angle of 86.38 (8) . In the crystal, intermolecular C-HÁ Á ÁO hydrogen bonds link the molecules to form columns along the a axis. The molecules are also stabilized by astacking interaction, with a centroidcentroid distance of 3.7793 (10) Å between the inversionrelated benzene rings.
In the title compound of (I), the bond lengths (Allen et al., 1987) and angles show the normal values. The two benzene rings (C1-C6 and C10-C15) make a dihedral angle of 86.38 (8)°.

Refinement
All H atoms were placed in calculated positions with C-H = 0.93-0.97 Å. The U iso (H) values were constrained to be 1.5U eq of the carrier atom for methyl H atoms and 1.2U eq for the remaining H atoms.

Special details
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.
Refinement. Refinement of F 2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F 2 , conventional R-factors R are based on F, with F set to zero for negative F 2 . The threshold expression of F 2 > 2sigma(F 2 ) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F 2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.